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    Trends Journal of Sciences Research 2015, 2(3), 84-89. 10.31586/InformationProcesses.0203.01
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    Abstract
    Visualizations of algorithms contribute to improving computer science education. The process of teaching and learning of algorithms is often complex and hard to understand problem. Visualization is a useful technique for learning in any computer science course. In this paper an e-learning tool for shortest paths algorithms visualization is described.
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    Visualizations of algorithms contribute to improving computer science education. The process of teaching and learning of algorithms is often complex and hard to understand problem. Visualization is a useful technique for learning in any computer science course. In this paper an e-learning tool for shortest paths algorithms visualization is described. The developed e-learning tool allows creating, editing and saving graph structure and visualizes the algorithm steps execution. It is intended to be used as a supplement to face-to-face instruction or as a stand-alone application. The conceptual applicability of the described e-learning tool is illustrated by implementation of Dijkstra algorithm. The preliminary test results provide evidence of the usability of the e-learning tool and its potential to support students? development of efficient mental models regarding shortest paths algorithms. This e- learning tool is intended to integrate different algorithms for shortest path determination.Full article
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    Trends Journal of Sciences Research 2015, 2(3), 90-94. 10.31586/ImageProcesses.0203.02
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    Abstract
    In this paper, we present an overview of Morphological Image Processing and edge detection using gradient based on different operators in MATLAB and developed its GUI (Graphical User Interface). This paper describes the basic technological aspects of Digital Image Processing with reference to Morphological techniques used in image processing. The
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    In this paper, we present an overview of Morphological Image Processing and edge detection using gradient based on different operators in MATLAB and developed its GUI (Graphical User Interface). This paper describes the basic technological aspects of Digital Image Processing with reference to Morphological techniques used in image processing. The word morphology commonly denotes a branch of biology that deals with the form and structure of animals and plants. Morphological processing refers to certain operations where an object is hit with a structuring element and thereby reduced to a more revealing shape . Morphology is related to the shapes and digital morphology is a way to describe and analyze the shape of a digital object in image processing. Morphological image processing GUI deals with the detection of X-Ray images and its edge detection process. The complete image processing is done using MATLAB Graphical User Interface Development Environment (GUIDE).Full article
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    Trends Journal of Sciences Research 2015, 2(3), 95-103. 10.31586/ChemicalEngineering.0203.03
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    Abstract
    The sanctuaries of Demeter and Asklepios are part of the Dion archaeological site that sits among the eastern foothills of Mount Olympus. The main building materials are limestones and conglomerates. Sandstones, marbles, and ceramic plinths were also used. The materials consist mainly of calcite and/or dolomite, whereas the deteriorated surfaces
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    The sanctuaries of Demeter and Asklepios are part of the Dion archaeological site that sits among the eastern foothills of Mount Olympus. The main building materials are limestones and conglomerates. Sandstones, marbles, and ceramic plinths were also used. The materials consist mainly of calcite and/or dolomite, whereas the deteriorated surfaces contain also secondary and recrystallized calcite and dolomite, gypsum, various inorganic compounds, fluoroapatite, microorganisms and other organic compounds. Cracks and holes were observed in various parts of the stones. The influence of specific weathering agents and factors to the behavior of the materials was examined. The particular environmental conditions in Dion combine increased moisture and rain fall, insolation and great temperature differences, abundance of intensive surface and underground water bodies in the surrounding area, an area full of plants and trees, therefore, they can cause extensive chemical, biological and mechanical decay of the monuments. The following physical characteristics of the building materials have been studied: bulk density, open porosity, pore size distribution, water absorption and desorption, capillary absorption and desorption. The chemical composition of bulk precipitation, surface and underground water was investigated. The salts presence and crystallization was examined. The influence of the water presence to the behavior of the materials was examined by in situ IR thermometer measurements. Temperature values increased from the lower to the upper parts of the building stones and they significantly depend on the orientation of the walls. The results indicate the existence of water in the bulk of the materials due to capillary penetration. The existence of water in the bulk of the materials due to capillary penetration, the cycles of wet-dry conditions, correlated with the intensive surface and underground water presence in the whole surrounding area, lead to partial dissolution-recrystallization of the carbonate material and loss of the structural cohesion and the surface stability.Full article
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    Trends Journal of Sciences Research 2015, 2(3), 104-109. 10.31586/Chemistry.0203.04
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    Abstract
    Theoretical studies for reaction mechanism of the gas phase elimination of 2-petnanone were carried out at B3LYP/6-31+g(d) level of theory. The mechanism for elemination is Norrish type II. The elimination reaction proceeds via a six-membered cyclic transition state with the formation of ethelene and propen-2-ol (acetone enol), which rearranges to
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    Theoretical studies for reaction mechanism of the gas phase elimination of 2-petnanone were carried out at B3LYP/6-31+g(d) level of theory. The mechanism for elemination is Norrish type II. The elimination reaction proceeds via a six-membered cyclic transition state with the formation of ethelene and propen-2-ol (acetone enol), which rearranges to the ketone. The calculated kinetic and thermodynamic parameters are in reasonable agreement with the reported experimental values. Analysis of the progress along the reaction coordinate, in terms of geometrical parameters suggest these reactions are dominated by the abstraction of a hydrogen atom from the γ- carbon by the carbonyl oxygen to give the diradical, and together with an important cleavage of C?-C? bond in the transition state through concerted reaction mechanism.Full article
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    Trends Journal of Sciences Research 2015, 2(3), 110-116. 10.31586/Agriculture.0203.05
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    Abstract
    The effect irrigation method and tillage on yield and irrigation water productivity of rice was conducted in split plot experiment with three replications during the dry seasons 2012 and 2013 in field conditions at the Lake Geriyo Irrigation scheme farms in Yola, Nigeria. 3 irrigation management: 3, 6 and 9
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    The effect irrigation method and tillage on yield and irrigation water productivity of rice was conducted in split plot experiment with three replications during the dry seasons 2012 and 2013 in field conditions at the Lake Geriyo Irrigation scheme farms in Yola, Nigeria. 3 irrigation management: 3, 6 and 9 day interval with 3 tillage practices: zero, shallow and deep soil tillage were studied. Results showed that there were significant differences in paddy yield, harvest index and irrigation water productivity. 6 days interval irrigation management was placed to one group with 3 days irrigation interval on paddy yield and harvest index; higher water productivity of 3.58 and 3.51 kg ha-1 mm-1were recorded with 6 days irrigation interval in both seasons respectively. Therefore it can be recommended that 6 day interval irrigation which had better irrigation water productivity and saved up 29% irrigation water be adopted for rice cultivation under clay loam soils of guinea savanna zone of Nigeria.Full article